QNI: Add API to check if connection is metered

This may be a useful factor in deciding whether or not you should
perform communications over the network which are not purely essential.
For example, if you have a logging mechanism you can delay uploading
them until you are no longer on a metered network.

Task-number: QTBUG-91024
Change-Id: I19d32f031a3893512dc440914133678004987fb1
Reviewed-by: Paul Wicking <paul.wicking@qt.io>
Reviewed-by: Marc Mutz <marc.mutz@qt.io>
Reviewed-by: Edward Welbourne <edward.welbourne@qt.io>

2 files changed, 18 insertions, 2 deletions

diff --git a/tests/manual/qnetworkinformation/mainwindow.h b/tests/manual/qnetworkinformation/mainwindow.h
index 4ecc721b81..0426bc3714 100644
--- a/tests/manual/qnetworkinformation/mainwindow.h
+++ b/tests/manual/qnetworkinformation/mainwindow.h
@@ -74,13 +74,20 @@ public slots:
         updateText();
     }
 
+    void updateMetered(bool newValue)
+    {
+        metered = newValue;
+        updateText();
+    }
+
 private:
     void updateText()
     {
         QString str =
-                QLatin1String("Reachability: %1\nBehind captive portal: %2\nTransport medium: %3")
+                QLatin1String("Reachability: %1\nBehind captive portal: %2\nTransport medium: %3"
+                              "\nMetered: %4")
                         .arg(enumToString(reachability), QStringView(captive ? u"true" : u"false"),
-                             enumToString(transportMedium));
+                             enumToString(transportMedium), metered ? u"true" : u"false");
         label->setText(str);
     }
 
@@ -88,6 +95,7 @@ private:
     Reachability reachability = Reachability::Unknown;
     TransportMedium transportMedium = TransportMedium::Unknown;
     bool captive = false;
+    bool metered = false;
 };
 
 #endif
diff --git a/tests/manual/qnetworkinformation/tst_qnetworkinformation.cpp b/tests/manual/qnetworkinformation/tst_qnetworkinformation.cpp
index 8cac940874..fc34a36c3c 100644
--- a/tests/manual/qnetworkinformation/tst_qnetworkinformation.cpp
+++ b/tests/manual/qnetworkinformation/tst_qnetworkinformation.cpp
@@ -70,6 +70,11 @@ int main(int argc, char **argv)
                          qDebug() << "Updated, current transport medium:" << newMedium;
                      });
 
+    QObject::connect(info, &QNetworkInformation::isMeteredChanged,
+                     [](bool metered) {
+                         qDebug() << "Updated, metered:" << metered;
+                     });
+
 #ifdef MOBILE
     // Some extra connections to update the window if we're on mobile
     QObject::connect(info, &QNetworkInformation::reachabilityChanged, &window,
@@ -78,11 +83,14 @@ int main(int argc, char **argv)
                      &MainWindow::updateCaptiveState);
     QObject::connect(info, &QNetworkInformation::transportMediumChanged, &window,
                      &MainWindow::updateTransportMedium);
+    QObject::connect(info, &QNetworkInformation::isMeteredChanged, &window,
+                     &MainWindow::updateMetered);
 #endif
 
     qDebug() << "Initial reachability:" << info->reachability();
     qDebug() << "Behind captive portal:" << info->isBehindCaptivePortal();
     qDebug() << "Transport medium:" << info->transportMedium();
+    qDebug() << "Is metered:" << info->isMetered();
 
     return app.exec();
 }